4.4.5.2 Compliance with ARARs -- Alternative 5 Alternative 5 relies on the plasma torch technology as the primary treatment technology and waste excavation, sorting, transportation, and storage as support technologies. Alternative 5 would meet all federal and state ARARs. Appendix B presents the ARARs and criteria TBC for Alternative 5. The ARARs and criteria TBC for Alternative 5 are briefly discussed below. PCBs The plasma torch technology is capable of meeting chemical- and action-specific ARARs for the treatment and disposal of PCBs because it is a form of high temperature incineration. Plasma torch is capable of treating PCBs to a level of less than 1 ppm in the vitrified slag treatment residual. The vitrified slag would need to be tested to determine the appropriate disposal method. It is highly unlikely that the vitrified slag would be a RCRA characteristic hazardous waste because the vitrified material should not leach contaminants. Subject to verification testing, the vitrified slag would be disposed of as a solid waste at the 30-acre disposal facility. The 30-acre disposal facility would be designed, operated, and closed in accordance with state laws and regulations governing nonhazardous solid waste disposal. Air Pollution Plasma torch is a form of high temperature incineration, and would require air pollution control technologies in accordance with the CAA and the IAC. In addition, the plasma torch unit must comply with the requirements of 40 CFR 761.70. As with any PCB incinerator, the plasma torch unit would need to achieve a DRE of 99.9999 percent PCBs. This level of destruction is possible with the plasma torch unit. Contaminated scrubber liquid from the air pollution control system would be incinerated in the plasma torch unit except for the final stream, which would be transported to a commercial treatment and disposal facility. Waste Treatment and Disposal Much of the contaminated material at the six CD sites can be treated using plasma torch. If transformers are found, they should be drained and flushed. Dielectric fluid and liquids containing greater than 500 ppm PCBs should undergo off-site incineration. The drained and flushed transformer carcasses would be disposed of as solid waste along with uncontaminated solid waste from the six sites if they contain less than 50 ppm PCBs. Capacitors would be drummed and incinerated using the plasma torch. PCB-contaminated solid waste that cannot be treated using the plasma torch would be disposed of at a TSCA-compliant commercial landfill or incinerator. PCB- contaminated material would be stored in the CTF or ISF in preparation for treatment and disposal in accordance with 40 CFR 761.65. Waste Excavation and Handling ARARs associated with waste excavation and handling would be met by Alternative 5. Fugitive dust and particulates would be controlled using best management practices such as wetting the waste material with water or foam. Surface water runon and runoff at the six CD sites would be controlled during excavation using berms and silt fences and by collecting surface water runon in the excavation area using pumps, vacuum trucks, and storage tanks. All collected surface water would be transferred to the CTF for treatment by the plasma torch unit. As part of site restoration activities, sediments collected by the silt fences or the berms would be containerized and transported to the CTF for treatment. The excavation sites would also be monitored to determine the effectiveness of dust and surface water control systems. Surface Water Decontamination water and storm water runon from the excavation sites should be collected, containerized, treated using carbon adsorption, and discharged to a POTW or surface water body in accordance with pretreatment standards or NPDES limitations of the CWA. Water from the lagoon at the Winston- Thomas Sewage Treatment Plant site could be pumped through carbon adsorption units and discharged to the Dillman Road POTW. Other Requirements Alternative 5 would also comply with other non-ARARs including OSHA regulations governing worker health and safety; INDOT regulations for the packaging, labeling, and shipping of hazardous materials; and the CERCLA Off-Site Rule for proper off-site disposal of CERCLA wastes. All waste material from the six CD sites handled off site must comply with the CERCLA Off-Site Rule.